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Mercury accumulation in sea lamprey (Petromyzon marinus) from Lake Huron

Science of the Total Environment

By:
, , , , ,
DOI: 10.1016/j.scitotenv.2013.10.081

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Abstract

We determined whole-fish total mercury (Hg) concentrations of 40 male and 40 female adult sea lampreys (Petromyzon marinus) captured in the Cheboygan River, a tributary to Lake Huron, during May 2011. In addition, bioenergetics modeling was used to explore the effects of sex-related differences in activity and resting (standard) metabolic rate (SMR) on mercury accumulation. The grand mean for Hg concentrations was 519 ng/g (standard error of the mean = 46 ng/g). On average, males were 16% higher in Hg concentration than females. Bioenergetics modeling results indicated that 14% higher activity and SMR in males would account for this observed sex difference in Hg concentrations. We concluded that the higher Hg concentration in males was most likely due to higher rate of energy expenditure in males, stemming from greater activity and SMR. Our findings have implications for estimating the effects of sea lamprey populations on mercury cycling within ecosystems, as well as for the proposed opening of sea lamprey fisheries. Eventually, our results may prove useful in improving control of sea lamprey, a pest responsible for substantial damage to fisheries in lakes where it is not native.

Geospatial Extents

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Mercury accumulation in sea lamprey (Petromyzon marinus) from Lake Huron
Series title:
Science of the Total Environment
DOI:
10.1016/j.scitotenv.2013.10.081
Volume
470-471
Year Published:
2014
Language:
English
Publisher:
Elsevier
Publisher location:
Amsterdam
Contributing office(s):
Great Lakes Science Center
Description:
7 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Science of the Total Environment
First page:
1313
Last page:
1319
Number of Pages:
7
Country:
United States
State:
Michigan
Other Geospatial:
Cheboygan River;Lake Huron